Miter-box.



4W. FUHRMANN.

MITER BOX. ABPLIOATION FILED MAYS, 1911.

2 SHEETS-SHEET 1.

v51 gy 11v Patented @Caiman WARREN' FUHRMAhl'N, A0]? NEWARK, NEW JERSEY.

Specification of Letters Patent.

Patented Oct. 1'?, 1911.

Application led'May 3, 1911. Serial No. 624,707.

, molding or other material may be cut at any angle to meet therequirements of the particular workin hand, said device combining thefeatures of a miter box and embodying a base, a work rest and a sawguide, the latter being rotatable and adapted to be adjusted to anyangle according to the cut to be made, the angle being determinedbysuitable graduations.

The invention provides a saw guide of novel form, which may be adjusted-toany height within certain limits and turned to any desired angle, theguide being of such construction an arrangement as notto limit the useof the device when it is required to make an angular cut approximatingsixty degrees.l

In accordance'with this invention the saw guide embodies a rotary basehaving spaced -uprights and guide members adjustably connected with theuprights .and adapted to engage opposite 'sides of the saw in a mannerto insure a proper cut being made at the required angle. v v

The invention consists of the novel fea-v tures, details of constructionand combination of parts, which hereinafter will be more particu arlyset forth, illustrated in the `ac companying drawings, and pointed outin the appended claims.

Referring to the drawings, forming a part yof the specification, Figure1 is a side view of a miter appliance embodying the invention. Fig., 2is a top plan view thereof. Fig. 3 is a longitudinal section on the line3--3 of Fig. 2. Fig. 4 isl a cross section on 'the line 4-4 of Fig. 2.Fig. 5 is a detail view in perspective of one of the uprights applied tothe rotary support. Fig. 6 is a detail perspective view of one of theguides. Fig. 7 is a horizontal section on the line 7-7 of Fig. 1.

Corresponding and like parts are referred to in the followingdescription, kand indicat edl in all the views of the drawings, by thesamel reference characters.

rIIhe device comprisesa base 1, a work rest.

2a rotary support 3, uprights 4 and guide members 5, the several parts,with the exception of the work rest 2, being preferably constructed ofmetal. The base 1 in the pre ferred construction consists of a casting,which is cored for lightness and economy of metal. A longitudinal groove6 is formed in the upper side of the base 1 midway off the.

longitudinal edges thereof and-constitutes a seat in which the loweredge of the work rest 2 is fitted, said Work rest" being retained inplace by means of bolts 7 and 7a, which pass through openings formed inthe work rest 2 and in the base l. The openings through which the bolts7 pass are lined by metal tubes 8. The work rest comprises similar partseach extending from the center -out ward. The upper side of the base isformed v with a plurallty of grooves 9, which afford clearance for theteeth of the saw after cutting through the work.

The rotary support 3 is of circular form and may be of any constructionand is vfitted in a circular recess formed centrally in the` upper sideof the base 1, the recess being. of a depth corresponding to thethickness of the support to enable the upper surface of the support tocome flush with the upper side of the base 1. As shown the rotarysupport consists of an outer ring, a center piece, and connecting arms.Arcuateslots 10 are formed in the outer or ring portion of the supportat diametrically opposite points and receive the lower ends of the bolts7. The support .is retained in place by means of the work rest, whichoverhangs the recess in which the rotary support is tted, said supportbeing held in the required adjusted position by tightening the bolts 7,whereby the support is clamped between the work. rest and the base'. Theouter portion of the rot-ary support has scale graduations to indicatedegrees, which are arranged to coperate with an indicating mark on thebase so that the 'A ner sides of the uprights 4 are recessed, asindicated at 13, and receive a stem 14 in which is formed a slot 15,said stem having a guide 16 at itsl upper end to receive the back of thesaw. nature of a cross head having hooks 17 at its ends.l The guide andstem are formed together and the cross head consists of two .membersarranged to engage opposite sides of the saw blade adjacent and belowthe back thereof. The stem 14 is free to slide in the opening formed bythe recesses in the sides of the uprights 4, which latter may beconsidered as a-post. While the stem 14 is free to move verticallybetween the uprights or members comprising the post it is neverthelessprevented from turning between the uprights. For this purpose a verticalgroove 18 is formed in a side of the stein and engages al pin 19 carriedby a spring 20 secured at one end to a side of the post, said pinoperating through an opening .in one of the upright-s 4 and entering thegroove 18. The inner end of the pin19 is made rounding so as to rideupon the outer end of a pin or stud 21 carried by the stem 14 andlocated near the lower end of the groove 18. When the stem 14 iselevated it is supported by the pin 19 engaging underthe pin 21, theupward movement of thc.

stem being limited by the pin 19 engaging the. lower end of the groove18. By having the opposing ends of the pins 19 and 2l made rounding thepin 21 is enabled to ride upon the inner end of the pin 19 upon applyingproper force to the stem 14. While the guide 16 engages thevback andupper portion of the saw blade the guides 5 engage opposite sides of thesaw blade near the luted edge, thereby preventing springing of the sawblade when starting the saw into the work. Each. upright or member 4 oithe post is provided with La 'guide 5, the lat` ter consisting of a barhaving inner projections 22 at its ends to engage opposite sides of thesaw blade. A seat 23 is formed at the middle of each guide toreceive'the upper flattened. end or head 24 of each member 4,

a astenin 25 servincr to secure the Guide to the head 24 in the adjustedposition, said guide being adjustable by means of the slot 26 formedtherein.

A work gage is located near each end of the base and consists of a bar27 having a The guide 16 is in the.

1t is observed that the uprights 4, as also the stems of the saw guides,occupy a central position in line with the work rest 2, hence adjustmentof the saw guides toany required angular position will not interferematerially with placing the work in posi-Y tion to be cut, since theupper portion of the saw guides extends over the work and the partconnecting the upper portion with the base is in line with the workrest. This would not be the case it uprights were located upon the outerportion of the-support 3, since said uprights would be brought near thework rest when adjusting the saw guide to an angle greater or less thana right angle. o

From the foregoing description, taken in connection with theaccompanying drawings, the advantages of the construction and ot themethod of operation will be readily apparent to those skilled in the arttgwhich the invention appertains, and while have described the principleof operation of the invention, together with the device which I nowconsider tobe the embodiment thereof, I desire to have it understoodthat the device shown is merely illustrative, and that such changes maybe made when desired as are within the scope'of the claims appendedhereto..

Having thus described the invention what is claimed as new, is

1. A miter appliance comprising a base, a

rotary'support mounted upon thebase and having spaced uprights Jformingguiding elements for the saw, a work rest mounted upon the base andhaving portions overhanging the rotary support, said wo. k rest being inline with the aforesaid uprights, and means for securing the work restto the base and clamping the rotary support in the adjusted position. w

2. In a miter appliance, the combination of aA base, a work rest mountedupon the base, a rotary support, spaced uprights projecting from therotary support in line with the work rest, and saw guides adjustablyconnected with the said uprights.

3. In combination a base, a rotary support mounted upon the base andhaving a 'groove in its upper side, spaced uprights having base memberssecured in the groove of the rotary support, and saw guides adjustablyconnected withvsaid uprights.

4. In combination a base, a rotary support mounted upon the base andhaving a Agroove in its upper side, spaced uprights having base portionssecured in the groove of the rotary support and having recesses in theiropposing sides, and saw guides each consisting of a cross head and astem arranged with their stems iitted in theyre-V cesses of saiduprights.

5. In a miter appliance, the combination of a base, a rotary supportmounted u i the base, means for securing the support in the requiredangular adjusted position, said rotary support being provided with sawguides, and a stem vvertically adjustable in said support 'and providedat its upper end With saw guides.

6. In a miter appliance, the combination of a base, a rotary supportmounted upon the base, means for securing the support 1n an. adjustedposition, upon the rotary support, a stem movable vertically in therotary support, and a saw guide carried. by said stem.

7'. In a miter appliance, the combination of'a base, a.rotary supportmounted upon the base, a post mounted vupon the rotary support andembodying `spaced members, saw guides adjustably connected to the upperends of the members of the post, a stem mounted to move vertically inthe post, and a saw' guide at the upper end of the copies of this sawguides adjustable patent may be obtained for five cents each, byaddressing the stem to engage the back and upper portion of the sawblade..

8.' In a miter appliance, the combination of a. base, a rotary supportmounted upon the base, a post carried by the rotarysup-J port, a stemmovable vertically in the postV `pin to hold the stem elevated, and asaw guide at the upper end of the stem.

In testimony whereof aiiix my signature in presence of tWo Witnesses.

OSCAR W. SoDEnsTnoM, ALEXANDER SoonnsrnoM.

Commissioner of Patents,

Washington, ID. C.

